×
Detail Form
We will send your result on your email id and phone no. please fill detail
1.
An electric field of 1500 Vm⻹ and a magnetic field of 0.40 Wbm⻲ act on a moving electron. The minimum uniform speed along a straight line the electron could have is
2.
In an Electromagnetic Wave, direction of propagation is in the direction of
3.
The unit of expression 
are
are
4.
A plane Electromagnetic Waves travelling along the 
-direction has a wavelength of 3 mm. The variation in the electric field occurs in the 
-direction with an amplitude 66 Vm⻹. The equations for the electric and magnetic fields as a function of 
and 
are respectively
-direction has a wavelength of 3 mm. The variation in the electric field occurs in the -direction with an amplitude 66 Vm⻹. The equations for the electric and magnetic fields as a function of and are respectively
5.
A radiation of energy 
falls normally on a perfectly reflecting surface. The momentum transferred to the surface is
falls normally on a perfectly reflecting surface. The momentum transferred to the surface is
6.
The waves which are reflected back to the earth by ionosphere is
7.
The dielectric constant of air is 1.006. The speed of Electromagnetic Wave travelling in air is 
ms⻹, where 
is about
ms⻹, where is about
8.
An Electromagnetic Wave has
9.
The charge of a parallel plate capacitor is varying as 
. The plates are very large and close together (area
, separation
). Neglecting edge effects, the displacement current through the capacitor is
. The plates are very large and close together (area, separation). Neglecting edge effects, the displacement current through the capacitor is
10.
The voltage applied across an X-ray tube is nearly equal to